台风“摩羯”路径转折预报和诊断分析
于慧珍1,2(), 马艳1,2(), 韩旭卿3, 时晓曚1,2
Forecast and diagnosis analysis of the turning of Typhoon Yagi track
YU Huizhen1,2(), MA Yan1,2(), HAN Xuqing3, SHI Xiaomeng1,2

图3. 2018年8月12日20:00至14日20:00逐6 h引导气流的大尺度分量(红色箭头,单位:m·s-1)、风暴尺度分量(蓝色箭头,单位:m·s-1)(a),8月14日02:00 850~300 hPa平均大尺度环流(风矢量,单位:m·s-1)、500 hPa位势高度场(黑色等值线,单位:gpm)(b)
(黑色点线为2018年8月12日20:00至14日20:00逐6 h台风路径。下同)

Fig.3. The large scale component (red arrows, Unit: m·s-1) and storm scale component (blue arrows, Unit: m·s-1) of the steering flow at 6 h interval from 20:00 BST 12 to 20:00 BST 14 August 2018 (a), the mean large scale flow during 850-300 hPa (wind vectors, Unit: m·s-1) and geopotential height field at 500 hPa (black contours, Unit: gpm) at 02:00 BST 14 August 2018 (b)
(The black dots and line denotes typhoon track at 6 h interval from 20:00 BST 12 to 20:00 BST 14 August 2018. the same as below)